JMA38S-50
3/8” Superflexible Coaxial Cable
1: Jacket 2: Outer conductor 3. Dielectric 4. Inner conductor	Contact technical support: 1-888-201-6073 techsupport@jmawireless.com Download this datasheet

Available options	Length (ft)	Packaging type
JMA38S-50-250	250	Standard 28" spool
JMA38S-50-300	300	Standard 28" spool
JMA38S-50-350	350	Standard 28" spool
JMA38S-50-400	400	Standard 28" spool
JMA38S-50-450	450	Standard 28" spool
JMA38S-50-500	500	Standard 28" spool
JMA38S-50-1640	1,640	Standard 28" spool

Construction				Associated Connectors
Inner conductor	Material	Copper clad aluminum wire		UXP-4MT-38S-01
	Diameter	0.1285 in | 3.26 mm		UXP-2MT-38S-01
Dielectric	Material	Physically foamed PE		UXP-1MT-38S-01
	Diameter	0.329 in | 8.36 mm		UXP-1RT-38S-01
Outer conductor	Material	Helical corrugated copper		UXP-4RT-38S-01
	Diameter	0.394 in | 10.00 mm		UXP-2RT-38S-01
Jacket	Material	PE, outdoor rated, black		UXP-4F-38S-01
	Diameter	0.445 in | 11.3 mm		UXP-KR-38S-01

Mechanical
Cable weight	0.080 lb/ft | 0.119 kg/m
Single minimum bending radius	0.98 in | 25 mm
Multiple minimum bending radius	1.97 in | 50 mm
Tensile force, minimum	209 lb | 930 N
Bending moment	20.4 lbf·in | 2.3 Nm
Flat plate crush strength	100.8 lb/in | 1.8 kg/mm
Recommended clamp spacing	3.3 ft | 1 m

Environmental
Storage temperature	-94 °F to +185 °F | -70 °C to +85 °C
Installation temperature	-40 °F to +140 °F | -40 °C to +60 °C
Operation temperature	-67 °F to +185 °F | -55 °C to +85 °C

Electrical properties
Impedance	50 ± 1.0 Ω
Dynamic PIM (dBc)	> -160 minimum
Nominal capacitance, pF/m	79.7
Inductance, mH/m	0.20
Propagation velocity	0.83
DC resistance, IC	1.29 Ω/kft | 4.232 Ω/km
DC resistance, OC	1.52 Ω/kft | 4.987 Ω/km
DC test voltage, V	2300
Peak power, kW	13.2
Insulation resistance, MΩkm	≥ 100,000
Screening attenuation, dB	>120
Max operating frequency, GHz	13.4

Frequency (MHz)	VSWR
617-960	≤ -34 (1.04)
1700-2200	≤ -32 (1.05)
2200-2700	≤ -29 (1.07)
3400-4200	≤ -23 (1.15)
5150-5925	≤ -21 (1.20)

Attenuation and average power*
Frequency (MHz)	Nominal attenuation, @ 20 °C (dB/100m)	Power rate @ 40 °C (kW)		Frequency (MHz)	Nominal attenuation, @ 20 °C (dB/100m)	Power rate @ 40 °C (kW)
1	0.354	13.2		3900	23.619	0.3
1.5	0.435	13.2		4000	23.925	0.29
2	0.503	13.2		4100	24.227	0.29
10	1.140	6.97		4200	24.525	0.28
20	1.622	4.91		5000	26.797	0.26
30	1.992	3.99		6000	29.397	0.23
50	2.583	3.08
85	3.382	2.34
88	3.442	2.3
100	3.673	2.16
108	3.819	2.07
150	4.513	1.75
174	4.866	1.62
200	5.223	1.5
204	5.276	1.49
300	6.418	1.22
400	7.428	1.04
450	7.886	0.98
460	7.974	0.97
500	8.319	0.93
512	8.420	0.92
600	9.126	0.84
650	9.505	0.81
700	9.870	0.77
750	10.222	0.75
800	10.563	0.72
824	10.722	0.71
894	11.176	0.68
960	11.588	0.65
1700	15.491	0.48
1794	15.920	0.46
1800	15.947	0.46
2000	16.824	0.43
2100	17.246	0.42
2200	17.659	0.41
2300	18.062	0.4
2500	18.843	0.38
2700	19.595	0.37
3000	20.672	0.34
3400	22.029	0.32
3600	22.678	0.31
3700	22.996	0.3
3800	23.310	0.3

* Note: Attenuation specifications are measured by free space method according to IEC61196.4-204. Maximum attenuation value shall be 105% of the nominal attenuation value.

09/24/25